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The ceiling fan has two bearings, the upper one needs to be filled with oil, but the lower one needs to be opened, and most of the surfaces lack oil. First, inject sewing machine oil into the upper part of the ceiling fan and manually turn the fan (you don't need to remove the ceiling fan, but cut off the power!) until you feel it rotates easily. If it doesn't work, you can only remove and turn on the fan!

1、 Method for malfunction of ceiling fan speed controller

Ceiling fans generally use a type of speed controller. When the speed controller fails, it can be checked from three aspects

1. The speed of each gear slows down, which is mostly due to local short circuits between motor turns or windings; Or due to leakage or reduced capacitance of the ceiling fan capacitor.

2. If the speed of the first gear of the governor is normal, while the other gears are slow or fast, the fault occurs within the governor. You can remove the governor housing and check if the welding points of each contact of the switch are good, and if there are any broken wires, short circuits, or desoldering in the transformer's wire drawing head.

3. The mismatch between the speed controller and the ceiling fan results in poor speed regulation. When installing the ceiling fan, attention should be paid to selecting a matching speed controller.

2、 Solution to the Noise Fault of Ceiling Fans

The abnormal noise and noise generated by the ceiling fan during normal operation are mainly caused by the loose structure of the mechanical components; Friction between the motor stator and rotor, as well as severe deformation of the fan blades. The ceiling fan with deformed blades should be promptly balanced and corrected. Under amateur conditions, a ruler can be used to measure whether the horizontal height of the tail end of each blade is consistent. If there is an error, the blade can be pulled to correct to the same height. For severely deformed blades, specialized personnel should be hired to correct or replace them.

Some ceiling fans that have been used for a long time without timely maintenance may have worn bearings and produce friction noise during operation. In this case, a small amount of oil can be added to the intermediate shaft after cleaning to reduce noise. If the bearing is severely worn and damaged, it should be replaced.

3、 Solution to the shaking of ceiling fans during operation

A high-speed rotating ceiling fan may cause shaking, which is likely due to the large diameter of the ceiling fan and the small area of the room. When the fan blades rotate at high speed, they are disturbed by air flow, which can cause the ceiling fan to shake. You can try replacing it with a smaller diameter ceiling fan. Another reason for the shaking of the ceiling fan is that the weight of each blade is inconsistent, the dynamic balance is poor (due to product quality issues), or the blade is improperly stored, resulting in deformation and shaking of the blade. If the deformation is not severe, it can be corrected on its own.

4、 Solution for stalling or slow speed

When the ceiling fan is turned on and cannot rotate or the speed is very slow in high gear, it is common for the capacitor of the ceiling fan to decrease in capacitance, leakage, poor contact, etc. At this time, the capacitor can be replaced and tried. The selection of capacitors requires the use of dedicated oil immersed capacitors for electric fans, with the same capacitance and voltage value as the original capacitor.

Article source: Jiangmen ceiling fan http://www.jincailed.com